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L t e e h is h b e e h S wv w nu G m Dm m Em LA m Ow m .B D W (No Model.)

MOUNTING FOR HEAVY ORDNANGE FOR LAND DEFENSES. No. 381,980.

Patented Ma 1, 1888'.

(No Model.) W. J. HOYLE, Deod. 2 Sheets-Sheet 2.

W. D. BALDWIN, Administrator. MOUNTING FOR HEAVY ORDNANGBPOR LAND DEPENSES. No. 381,980.

l x N a /gig??? sition.

WILLIAM D. BALDWIN, OF WASHINGTON, DISTRICT OF COLUMBIA, ADMINISTRATOR OF XVILLIAM J. HOYLE, DECEASED.

Moonrise-eon HEAVY osnNAincs Foe LAND caresses.

\ BPECIEIGATIQN forming part of Letters Patent K038119813. dated May 1, 1888.

Application filed July 27, 15 .87. Serial No. 245,457. (No model.) Patented in England March G, 1886, No. 3,205, and in Italy December 31, 1886, No. 20.000v

. To all whom it may concern:

Be it known that WILLIAM Jnsmscs BOYLE, deceased, formerly a subject of the Queen of Great Britain, residing at The l'lls wick Works, Newcastle-on-Tyne, England, en-

, gineer, did invent certain new and useful In'rprovcments inMeuntings for Heavy Ordnance for Land Defenses, (for which he obtained Letters Patent in Great Britain, Jo. 3,205, dated 10 March 8,1886, and in Italy,'No. 20,9QG, dated energy of the recoil is stored and rendered available to raise the gun again to a firing po- The recoil-cylinder and the air-rcceiver are made from one mass of forged steel.

The air-receiver shown instead of consist-in i g of a single chamber, is obtained by boring 2,-

series of holes or cavities around the cylinder parallel to its axis. These cavities are bored screwed plugs tightly calked when in place. Small holes are drilled from one cavity to another at the upper end. These are suiiieient to maintain equilibrium ofprcssure in the sev-' oral cavities. By this arrangement leakage of air is efiectually prevented, there being no I joints except those around the screw plugs,

and these always remain covered by liquid. 5 The recoil-valve is placed centrally at the bottom of the recoil-cylinder, it is set to open a very short distance during recoil, and the recoil is expended in part in forcing the liquid past this valve. The liquid passes from the 0 recoil-cylinder first into the vnlvecliamlier,

and thence by passages into the air-cavities, a, passage being cut from the valve-chamber to the bottom of each cavity. The valve closes to prevent return, so that the gun after recoil 4'5 remains dowmwliile the air is retained in the v air-receiver under full pressure.

' gun to rise, a bypass valve is opened which To allow the .allows the liquid to return from the air-re {eeiver into the rccoil-cylinder.

from the bottom, and are afterward closed with This valve is actuated--by a rack which is moved by means "1y which by may ,ler'red from the recoil-cylinder to the air-rc- -ceiver, is mounted upon the side of the reof a lever-handle in a direction parallel to the axis ol the cylinder. A jointed rod connects the rack with the hand-lever to provide for the rocking movement of the recoil-cylinder about its trunnious. A chain connected with a moving part of the gunnnonnting also automatically moves the rack and closes the bytpass vzilvc as the gun reaches the firing posiion.

In order to prevent the gun overrunning position t ie ram is inserted, and it is then" turned, partly around and secured in its working position.

bio fortlic rain to escape from the cylinder.

The .,I'QSS-ll0td connecting the rain with the pivoted frame or side levers-of the gunmounting is "provide with powerful steel This being done, it is impossi-.

Notclies are cut out both from the springs. These sprin s allow aeertain amount of play between the cross-head and the ram, MIG prevent undue train coining either upon the 'ccoilcylind? or ram.- The force-pump,

unl labor liquid can be transc il-cylinder, and moves with it as the cylinder rocks upon its trniinionsl, The hand-lever which works the pump has, however, a,

fixed fulcrum and an arm engaging with the pumprod near the trunni0ns,0n which the recoil-cylinderoscillates, so that the connection between these parts is not interfered with by the movement of the recoil-cylinder.

.7 The giin-iiionntiiig is not centrally pivoted,

but is supported by live rollers upon a ring rail or racer, and these rollers have flenges on: I

both sides of the rail. This racer or ring-rail is made of a piece with a ring of teeth, with which the pinions on the training-gear engage, and also with a ring, with which clips on the movable part of the mounting engage to prevent theinounting lifting from the racer 1d mostfully understood and readily carried into simplified, and no shifting of the foundations can afterward affect the relative positions. The

training of the gun-mounting is efi'ected by wheel-gearing, and each train of wheels is fitted up in a pillar and forms-a separate piece, to be attached to the mounting and readily renewa ble in case of injury.

In order that the said invention may be effect, I will proceed to describe the drawings hereunto annexed.

In'thc drawings. Figure 1 shows a side elcvation, partly in section, of the recoil cylinder with other parts of ,the gun-mounting, which "in itsgencral arrangement (except as hereinafter stated) is similar to that described in another application for patent made by m'e,dated July 18, 18257, Serial No, 244,656. Fig. 2 shows a, side elevation of the. recoil-cylinder with parts connected therewith drawn to a larger scale. Fig. 3 is a longitudinal section of the same. Fig. 4; is an underside view. Fig. 5 is a transversesection' on the line A. B ,in Fig. 3. Fig. 6 shows separately, to a larger 'scal'e,a longitudinal section of the recoil-valve.

A A is; the' cavity of the recoil-cylinder, in which the ram B enters. This ram carries a cross-head, (l, which is jointed to the gun-supporting pivoted frame formed by the side levex-s. There are two of these side levers, and they are connectedv by strong framing. A portion of one of these levers is shown and marked D. The fulcrum is at D at thc lower endofl the frame upon the revolving talole or plat: form Z. At their upper ends the side levers of the frame have hearings in which the gun is carrie d by its trunnions. E E are the cavities around the cylindeic Ac, forming the airreceivei. These cavities are bored in the same mass of inetal in which. the cylinder itself is formed, and at their lower ends they are "plugged with plugs E.

E E" are small erforations near the upper ,,ends of the cavities E, by'which they communicateth e one with the other. The ram B is made to enter the cylinder A ."from its upper end, andthepiston-lihe en.

o largement B at its lower end is notched away atintervalsaround the circumference to ad-' mit of this. The collar at A at the upperend of the cylinder is similarly cut away, and when the raiu is suitably placed it is able toenter the cylinder.-

Aftcr the ram has becnso en-. tiered into the cylinder itis turned partly round to bring it to its working position, and when in. this position it cannnot be withdrawn from the cylinder, because the, piston-like enlarge- 6o lnent B comes into contactwiththe collar A.

The connection between the ram B and the cross-headO is suclras to ad mitol longitudinal but not of rotary movement. A cavity is formed in the cross-head and this receives springs O 0.

The spriugs represented in the drawings are stem, B, forming a continuation of the ram B,

cavity in thegcross-head and a disk, B, placed onto the stem B and held fnplace by. a screw and nut.

fitted into the lower end ojfthe cylinder its place. In this block holes F F are drilled, and-from the bottom of thesehclesa perfora block where a valve-face is formed.

this stem the'annula'r valve G is carried. The

l, which abuts on the valve G, and also upon acollar, Ffiscrewed onto the stem F.

cylinder A, passes by passages intothecavities E E, which cavities are already charged ,with compressed air, as explained in the applicationfor patent hereinhefore mentioned.

a corresponding sci'cwrthread in the passage which receives the valve: This valve closes .a passa c between 'a:cylindcr,A,'and thespaco beyoni the recoil-valve-in communication with.

withdrawn from its seat, the pressure of the ,air in the cavities E drives the water intoth'e' the cylinder and the gun is raised to its firing position." The by-pass valve H is worked by the hand-lever K. Anarm on the axis of this 19- veris jointed to the rod K',and this is connected to the rack K, having teeth engaging with pinion-like teeth upon the stein of the valve H. Upon the sanie'axis with the hand-lever there is also a short lever-arm, which is con- When the gun comes'lrp to its firing position,

ver and close the hy-pass valve H. y

L is a pump provided upon'the side of the recoil-cylinder A. L, communicating with the interior of the cylindeigand a delivery-passage, 7L, communicat M is a hand-lever for woiking the pump. This haud-lever is upon an axis which is car riedin hearings on the platform Z, :and the axis has ashort arm entering between collars to the trunnions' A*, on which the cylinder A.

of the recoil-cylinder about theseti'unnions n is a stem fixedinto the block am u oni v8o valve is pressed toward its seat by the spring cylinder Ad. The ram 3 is then forced outof nected by chains in the manner shown in Fig. 1' with the side levers, -D,which carry the gun.

is carried, to admit of the requisite movement dished rings. They are arranged around aand are compressed between the bottom of the I e, recoil-valve shown by Fig. ois

It consists of a block,f F, which; is screwedinto 3 tion passes through to the outer face of the 'Fis a loclcscrcw to retain the collar'F* I when in. place. The collar E has a projecting water,when driven out by the recoilifronithe,

I1 is a lay-pass valvecohsisiingof a small cone 1 forced to its seat by a screw upon its stem and the cavities E. When the by-pass valve Histhese chains'automatically move theha'nd-le- It has asuction-passage, L

- ing with the air-cavities E. I 5

upon the pumprod at a point sufficiently neartween the hand-lever and the pump-rod.

without interfering with the engagement bey the use of this pump the gun may be brought down from the raised position without firing.

A central pivot for the platform Z is not provided; but it is carried by coned rollers N, which run upon a ring-rail or racer, O. The rollers have flanges on either side of the rail.

0 is a ring of teeth formed of a piece with the racer for use in training the gun and platform.

0 is another ring or flange, also formed of a piece with the racer and intended for the clips PP on the platform to engage with it, so that the recoil in no case may be able to cause the platform to lift.

Q is a pillar bolted onto the platform. It carries the axis of the hand-wheel Q, by turning which the gun'is trained. 'The axis of the hand-wheel is connected by beveled gear with a. vertical axis carried within the pillar, and

this at its lower end carries a spur-wheel in gear with the teeth at O.

No claim is herein made covering simply features or combinations of devices shown and described in the beforeppl tion, serial no. 244,656.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim as the invention of the said WILLIAM J. HovLE is- I 1. The combination, in a gun-mounting, o a ram connected with a movable frame which carries the gun, a cylinder into which the ram is driven by the recoil of the gun, an air-receiver formed by communicating cavities in the walls of the cylinder, a passage connecting the interior of the cylinder with the cavities of the air-receiver, a valve in this passage which opens automatically to permit escape of liquid from the cylinder to the air-receiver cavities, but closes to prevent return from the the walls of the cylinder, a-passage connecting the interior of the cylinder with the cavities in its walls, a valve in this passage which opens automatically to permit escape of liquid from the cylinder to the air-receiver cavities,

but closes against return, a by-pass valve which opens a return-passage between the cavities and. the cylinder, and a pump with its suction-pipe connected with the interior of the cylinder and its delivery=pipe connected with the cavities in the cylinder-walls,'substantially as and for the purpose set forth.

3. The combination, in a gun-mounting, of

a ram connectedwith a pivoted frame which carries the gun, a cylinder into which'the ram f closes said valve as the gun reaches the firing position, substantially as and for the purpose set forth. V

4. The combination, in a gun-mounting, of a ram connected with a pivoted frame which carries the gun, a cylinder into which the ram is driven by the recoil of the gun, an air-receiver adjacent to the cylinder, a passage conuecting the cylinder with the air-receiver, a valve in this passage which opens automatically to permit escape of liquid'from the cylinder to the air-receiver, but closes against return, a by-pass valve-which opens a returnpassage between the air-receiver and the cylinder, a pinion on the stem of the bypass valve, a rack engaging with the pinion, and a chain or like connection between the rack and gun-carrying frame, substantially as and for the purpose set forth.

In testimony whereof I have hereunto subscribed my name.

, WM. D. BALDWIN, I Administrator of William J. Hoyle, deceased.

Witnesses:

BALTUS DE LONG, N. L. HoLMEs. 

